{"code":200,"msg":"操作成功","data":{"name":"麻雀快记 API","version":"1.0.0","description":"麻将金币记账微信小程序后端服务","endpoints":{"POST /api/auth/wechat/login":"微信登录","POST /api/rooms":"创建房间","POST /api/rooms/join":"加入房间","GET /api/rooms/{roomCode}":"查询房间","POST /api/rooms/{roomCode}/seat":"入座","POST /api/rooms/{roomCode}/start":"开始游戏","GET /api/games/{gameId}/state":"对局状态","POST /api/games/{gameId}/rounds":"提交回合","POST /api/games/{gameId}/undo":"撤销","POST /api/games/{gameId}/finish":"结束对局"}}}